Test Summary

Isolated danger buoys are placed directly above a hazard such as a submerged rock or a wreck, but has navigable water all around it. Unlike cardinal buoys, they can be passed either side.

Colour

Horizontal Black & Red stripes

Shapes

Conical, Pillar, Spar

Top Marks

Two black balls in a vertical line

Lights

White, 2 quick flashes with intervals of 5 seconds

Chart Symbol

Tests

Taking a test can be a great way to build on what you have learnt already and build confidence before taking a formal qualification test. The Isolated Danger Buoys test consists of 5 questions randomly chosen from a selection.